Building Blocks

Esta sección contiene productos fundamentales para la síntesis de compuestos orgánicos y biológicos. Los bloques de construcción son los materiales de partida esenciales utilizados para construir moléculas complejas a través de diversas reacciones químicas. Desempeñan un papel crítico en el descubrimiento de fármacos, la ciencia de materiales y la investigación química. En CymitQuimica, ofrecemos una gama diversa de bloques de construcción de alta calidad para apoyar sus investigaciones innovadoras y proyectos industriales, asegurando que tenga los componentes esenciales para una síntesis exitosa.

Subcategorías de "Building Blocks"

Ácidos borónicos y derivados del ácido borónico

Building Blocks quirales

Building Blocks de hidrocarburos

Building Blocks orgánicos

Productos de "Building Blocks"

100
- 20
- 50
- 200

productos por página. Hay 263118 productos en esta categoría.

Datos del producto	Pureza	Rango de precios	Entrega estimada
1-Bromo-1-ethoxycyclopropane REF: 3D-VDA63162CAS: 95631-62-2	Min. 95%	A consultar	Mié 13 Nov 24
5-(2-Chlorophenyl)picolinaldehyde REF: 3D-QCA21937CAS: 65219-37-6	Min. 95%	A consultar	Mié 13 Nov 24
6-Ethylbenzo[E][1,2,4]triazine-3-carboxylic acid REF: 3D-WVB29292CAS: 1146292-92-3	Min. 95%	A consultar	Mié 13 Nov 24
N-Boc-4-pentyne-1-amine REF: 3D-BGA97850CAS: 151978-50-6	Min. 95%	A consultar	Mié 13 Nov 24
2H,3H,4H-Benzo[E]thiin-6-ylamine REF: 3D-UEC16328CAS: 1369163-28-9	Min. 95%	A consultar	Mié 13 Nov 24
4-{[(4-Chlorophenyl)sulfanyl]methyl}benzohydrazide REF: 3D-CQA76932CAS: 377769-32-9	Min. 95%	A consultar	Mié 13 Nov 24
Ethyl 2-hydroxy-3-methyl-4-oxopentanoate REF: 3D-RKB85805CAS: 891858-05-2	Min. 95%	A consultar	Mié 13 Nov 24
1-(3-Methoxypropyl)-4-methyl-1H-pyrazol-3-amine REF: 3D-UDC08035CAS: 1344080-35-8	Min. 95%	A consultar	Mié 13 Nov 24
(2E)-3-[4-(Heptyloxy)-3-methoxyphenyl]prop-2-enoic acid REF: 3D-FQC94990CAS: 1630949-90-4	Min. 95%	A consultar	Mié 13 Nov 24
rac-(1R,2S,4S)-2-(Methoxymethyl)-7-azabicyclo[2.2.1]heptane hydrochloride REF: 3D-TPD50541CAS: 2243505-41-9	Min. 95%	A consultar	Mié 13 Nov 24
3-(2,5-Dimethylphenoxy)piperidine REF: 3D-WMB68105CAS: 946681-05-6	Min. 95%	A consultar	Mié 13 Nov 24
1-Methyl-2-piperazinecarboxylic acid dihydrochloride REF: 3D-WZB55014CAS: 1246550-14-0	Min. 95%	A consultar	Mié 13 Nov 24
5-(Piperidin-4-yl)isoquinoline REF: 3D-GAC80740CAS: 1256807-40-5	Min. 95%	A consultar	Mié 13 Nov 24
rac-tert-Butyl (2R,3R)-3-hydroxy-2-(propan-2-yl)pyrrolidine-1-carboxylate REF: 3D-HCD37453CAS: 1932374-53-2	Min. 95%	A consultar	Mié 13 Nov 24
4-[4-Methyl-5-(trifluoromethyl)-1H-pyrazol-1-yl]butanoic acid REF: 3D-YXC84308CAS: 1823843-08-8	Min. 95%	A consultar	Mié 13 Nov 24
Methyl 3-Chloro-5-(hydroxymethyl)benzoate REF: 3D-DGA20358CAS: 153203-58-8	Min. 95%	A consultar	Mié 13 Nov 24
([5-(4-Methylphenyl)isoxazol-3-yl]methyl)amine hydrochloride REF: 3D-YCC58427CAS: 1323584-27-5	Min. 95%	A consultar	Mié 13 Nov 24
1,3-Diethyl 2-(2-phenylacetamido)propanedioate REF: 3D-NDA74417CAS: 88744-17-6	Min. 95%	A consultar	Mié 13 Nov 24
3-Methyl-1-(1-{5H,6H,7H,8H,9H-[1,2,4]triazolo[4,3-a]azepin-3-yl}ethyl)-1H-pyrazol-4-amine hydrochloride REF: 3D-GHC96649CAS: 1431966-49-2	Min. 95%	A consultar	Mié 13 Nov 24
2-Methylpentan-2-amine hydrochloride REF: 3D-MEA30654CAS: 112306-54-4	Min. 95%	A consultar	Mié 13 Nov 24
3-(3-Bromophenyl)-2,2-dimethylpropan-1-amine hydrochloride REF: 3D-YTB10678CAS: 1098106-78-5	Min. 95%	A consultar	Mié 13 Nov 24
tert-Butyl 4-(2-hydroxyethyl)azepane-1-carboxylate REF: 3D-YTA83698CAS: 473836-98-5	Min. 95%	A consultar	Mié 13 Nov 24
N-(4-Hydroxyphenyl)cyclohexanecarboxamide REF: 3D-YWA76346CAS: 548763-46-8	Min. 95%	A consultar	Mié 13 Nov 24
2-Amino-2-t-butylpropanoic acid HCl REF: 3D-NDA80779CAS: 88807-79-8	Min. 95%	A consultar	Mié 13 Nov 24
8-Acetyl-5-(benzyloxy)-2H-benzo[b][1,4]oxazin-3(4H)-one REF: 3D-KRB22932CAS: 1035229-32-3	Min. 95%	53,00 €~717,00 €	Mié 13 Nov 24
(2,5-Dichlorothiophen-3-yl)(phenyl)methanone REF: 3D-ZDA97187CAS: 99971-87-6	Min. 95%	A consultar	Mié 13 Nov 24
3-[(2-Methylprop-2-en-1-yl)oxy]aniline REF: 3D-HEA26837CAS: 107268-37-1	Min. 95%	A consultar	Mié 13 Nov 24
4,4-Diethyl-2,6-dioxopiperidine-3,5-dicarbonitrile REF: 3D-FDA72113CAS: 80721-13-7	Min. 95%	A consultar	Mié 13 Nov 24
1-[(4-Bromo-2-fluorophenyl)carbonyl]pyrrolidine REF: 3D-HKB68988CAS: 882689-88-5	Min. 95%	A consultar	Mié 13 Nov 24
2-{[(tert-Butoxy)carbonyl]amino}-2-(4-ethoxyphenyl)acetic acid REF: 3D-EGC87792CAS: 1404877-92-4	Min. 95%	A consultar	Mié 13 Nov 24
5-Bromo-2-ethoxyanisole REF: 3D-VSB79538CAS: 1070795-38-8	Min. 95%	A consultar	Mié 13 Nov 24
3-[2-(Trifluoromethyl)phenyl]-1H-pyrazole-5-carboxylic acid REF: 3D-NRB77076CAS: 1038770-76-1	Min. 95%	A consultar	Mié 13 Nov 24
Ethyl 3-bromopyrazolo[1,5-a]pyrimidine-5-carboxylate REF: 3D-UZA30683CAS: 619306-83-1	Min. 95%	A consultar	Mié 13 Nov 24
tert-Butyl 3-hydrazinylpiperidine-1-carboxylate REF: 3D-BZB81521CAS: 1226815-21-9	Min. 95%	A consultar	Mié 13 Nov 24
6-(2,2,2-Trifluoroethoxy)pyrazin-2-amine REF: 3D-GHC65474CAS: 1431654-74-8	Min. 95%	A consultar	Mié 13 Nov 24
(4-Methylpiperazin-1-yl)-oxo-acetic acid REF: 3D-SDB90436CAS: 717904-36-4	Min. 95%	A consultar	Mié 13 Nov 24
N'-Hydroxy-1-methyl-1H-imidazole-5-carboximidamide REF: 3D-NKB04228CAS: 888042-28-2	Min. 95%	A consultar	Mié 13 Nov 24
2-(Diethylamino)ethyl 2-amino-3-methylbenzoate REF: 3D-TBC18856CAS: 1293188-56-3	Min. 95%	A consultar	Mié 13 Nov 24
2-(1-Ethyl-1H-pyrazol-5-yl)acetic acid REF: 3D-KAC65931CAS: 1260659-31-1	Min. 95%	A consultar	Mié 13 Nov 24
Methyl N-Cbz-morpholine-2-carboxylate REF: 3D-KFA78222CAS: 135782-22-8	Min. 95%	A consultar	Mié 13 Nov 24
2,2-Dimethyl-tetrahydrothiophene-3-carboxaldehyde REF: 3D-IDA41393CAS: 83413-93-8	Min. 95%	A consultar	Mié 13 Nov 24
2-Hydroxy-2-methyl-4-phenylbutanoic acid REF: 3D-EAA37463CAS: 4374-63-4	Min. 95%	A consultar	Mié 13 Nov 24
Dicyclopentylmethanone REF: 3D-SAA61048CAS: 17610-48-9	Min. 95%	A consultar	Mié 13 Nov 24
3-(1H-Imidazol-2-yl)-3-phenylpropanoic acid hydrochloride REF: 3D-DXC57027CAS: 1803570-27-5	Min. 95%	A consultar	Mié 13 Nov 24
2-Cyclopropyl-2-methoxypropan-1-amine REF: 3D-RGC35204CAS: 1416352-04-9	Min. 95%	A consultar	Mié 13 Nov 24
4-(Hydroxymethyl)-3-methylbenzonitrile REF: 3D-CJA09407CAS: 227094-07-7	Min. 95%	A consultar	Mié 13 Nov 24
3-(3-Fluoro-2-methylphenyl)propionic acid REF: 3D-CQA08380CAS: 377083-80-2	Min. 95%	A consultar	Mié 13 Nov 24
1-Chloro-2,4,4-trimethylpentane REF: 3D-CAA37108CAS: 2371-08-6	Min. 95%	A consultar	Mié 13 Nov 24
4-Chloro-2-hydrazinobenzoic acid REF: 3D-ZLA16641CAS: 299166-41-9	Min. 95%	A consultar	Mié 13 Nov 24
Methyl 2-(1-benzhydrylazetidin-3-ylidene)acetate REF: 3D-LCA89001CAS: 61890-01-5	Min. 95%	A consultar	Mié 13 Nov 24
2-(2-Methoxyethoxy)phenol REF: 3D-IBA13023CAS: 33130-23-3	Min. 95%	A consultar	Mié 13 Nov 24
3-(1H-1,3-Benzodiazol-1-ylmethyl)-N'-hydroxybenzene-1-carboximidamide REF: 3D-RQB81521CAS: 1016815-21-6	Min. 95%	A consultar	Mié 13 Nov 24
8-Chloroquinolin-7-ol REF: 3D-LAC67097CAS: 1261670-97-6	Min. 95%	A consultar	Mié 13 Nov 24
3-Amino-6-bromo-2-pyrazinemethanol REF: 3D-KAC88059CAS: 1260880-59-8	Min. 95%	A consultar	Mié 13 Nov 24
2-Amino-4-(methoxycarbonyl)benzoic acid REF: 3D-KDA74302CAS: 85743-02-8	Min. 95%	A consultar	Mié 13 Nov 24
4,4-difluoropyrrolidine-3-carboxylic acid hydrochloride REF: 3D-EWC78881CAS: 1779788-81-6	Min. 95%	A consultar	Mié 13 Nov 24
(Iodomethyl)cyclopropane REF: 3D-IBA57402CAS: 33574-02-6	Min. 95%	A consultar	Mié 13 Nov 24
1-Benzoylcyclopropan-1-amine hydrochloride REF: 3D-NKD13093CAS: 2138130-93-3	Min. 95%	A consultar	Mié 13 Nov 24
4-Bromo-2-(methylsulfanyl)benzonitrile REF: 3D-XNC85169CAS: 1597851-69-8	Min. 95%	158,00 €~892,00 €	Mié 13 Nov 24
Tert-Butyl Methyl(1-Methyl-1H-Pyrazol-3-Yl)Carbamate REF: 3D-SSC90598CAS: 1692905-98-8	Min. 95%	A consultar	Mié 13 Nov 24
3-Fluoro-4-(piperidin-1-yl)benzonitrile REF: 3D-FVA08054CAS: 505080-54-6	Min. 95%	A consultar	Mié 13 Nov 24
6-(Aminomethyl)-1,2,3,4-tetrahydropyrimidine-2,4-dione REF: 3D-VAA98902CAS: 20989-02-0	Min. 95%	A consultar	Mié 13 Nov 24
3-(Bromomethyl)piperidine hydrobromide REF: 3D-MXB85101CAS: 1187851-01-9	Min. 95%	A consultar	Mié 13 Nov 24
5-Chloro-6-[(3-chlorophenyl)methoxy]pyridine-3-carboxylic acid REF: 3D-PJC85456CAS: 1489854-56-9	Min. 95%	A consultar	Mié 13 Nov 24
4-(Isopropylthio)-1H-pyrazole REF: 3D-QYB19794CAS: 1215197-94-6	Min. 95%	A consultar	Mié 13 Nov 24
2-Amino-2-(4-methanesulfonylphenyl)propanoic acid REF: 3D-JVB69374CAS: 1134693-74-5	Min. 95%	A consultar	Mié 13 Nov 24
(R)-1-Boc-3-N-(pyridin-4-ylmethyl)-amino-piperidine REF: 3D-SYB81994CAS: 1217819-94-7	Min. 95%	A consultar	Mié 13 Nov 24
2-(Aminomethyl)-N,N-dimethylaniline dihydrochloride REF: 3D-WYB72571CAS: 1221725-71-8	Min. 95%	A consultar	Mié 13 Nov 24
1-Cyclobutyl-2-oxo-1,2-dihydropyridine-4-carboxylic acid REF: 3D-PHC90010CAS: 1439900-10-3	Min. 95%	A consultar	Mié 13 Nov 24
4-ethynylpyrimidin-2-amine REF: 3D-HYB17518CAS: 1207175-18-5	Min. 95%	A consultar	Mié 13 Nov 24
4-[(4-Bromophenyl)sulfanyl]butanoic acid REF: 3D-QAA11576CAS: 15115-76-1	Min. 95%	A consultar	Mié 13 Nov 24
Ethyl 2-amino-5-chlorothiazole-4-carboxylate REF: 3D-LFA53901CAS: 136539-01-0	Min. 95%	A consultar	Mié 13 Nov 24
2-Amino-5H,6H,7H-pyrrolo[1,2-a]imidazole-3-carbonitrile REF: 3D-JFA88151CAS: 134881-51-9	Min. 95%	A consultar	Mié 13 Nov 24
4-Benzamidopiperidine HCl REF: 3D-IDA54009CAS: 83540-09-4	Min. 95%	A consultar	Mié 13 Nov 24
2-(2-Oxopyridin-1(2H)-yl)propanoic acid REF: 3D-MCA03177CAS: 62031-77-0	Min. 95%	A consultar	Mié 13 Nov 24
5-Cyclopropyl-7-(difluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carbonyl chloride REF: 3D-LJB40965CAS: 861409-65-6	Min. 95%	A consultar	Mié 13 Nov 24
1-bromo-2-cyclohexylbenzene REF: 3D-JCA73492CAS: 59734-92-8	Min. 95%	A consultar	Mié 13 Nov 24
2-Bromo-1-(2,3-dihydro-1H-indol-1-yl)-3-methylbutan-1-one REF: 3D-RQB83876CAS: 1016838-76-8	Min. 95%	A consultar	Mié 13 Nov 24
Methyl 2-(butan-2-ylsulfanyl)acetate REF: 3D-CCA76354CAS: 52763-54-9	Min. 95%	A consultar	Mié 13 Nov 24
4-Bromo-1-tert-butyl-3-methyl-1H-pyrazole-5-carboxylic acid REF: 3D-DFA53760CAS: 128537-60-0	Min. 95%	A consultar	Mié 13 Nov 24
1-(4-Methylpyridin-2-yl)-1H-pyrazole-4-sulfonyl chloride REF: 3D-XZB07612CAS: 1247076-12-5	Min. 95%	A consultar	Mié 13 Nov 24
4-Bromo-N-methyl-N-phenylaniline REF: 3D-LNA19016CAS: 336190-16-0	Min. 95%	A consultar	Mié 13 Nov 24
5-Nitro-2-(oxetan-3-yloxy)pyrimidine REF: 3D-ZDC71552CAS: 1349715-52-1	Min. 95%	A consultar	Mié 13 Nov 24
7-Fluoro-1-methyl-1,2,3,4-tetrahydroisoquinoline REF: 3D-ZJA62475CAS: 249624-75-7	Min. 95%	A consultar	Mié 13 Nov 24
1-(2-Aminophenyl)-1H-pyrazole REF: 3D-ECA70591CAS: 54705-91-8	Min. 95%	A consultar	Mié 13 Nov 24
3-Amino-4-cyanobenzoic acid REF: 3D-JGA84771CAS: 159847-71-9	Min. 95%	A consultar	Mié 13 Nov 24
4-(5-Chloro-[1,2,4]thiadiazol-3-yl)-morpholine REF: 3D-MKB62392CAS: 887623-92-9	Min. 95%	A consultar	Mié 13 Nov 24
3-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]piperidine REF: 3D-FUB18975CAS: 1105189-75-0	Min. 95%	A consultar	Mié 13 Nov 24
3-Amino-3-methylpiperidine-2,6-dione Hydrochloride REF: 3D-YCA83906CAS: 73839-06-2	Min. 95%	A consultar	Mié 13 Nov 24
N-(Oxolan-2-ylmethyl)-4-[3-(trifluoromethyl)phenyl]-1,3-thiazol-2-amine REF: 3D-EMB97384CAS: 929973-84-2	Min. 95%	A consultar	Mié 13 Nov 24
2-Ethyl-1,2,3,4-tetrahydro-benzo[b]-[1,6]naphthyridine-10-carboxylic acid REF: 3D-UVA15065CAS: 519150-65-3	Min. 95%	A consultar	Mié 13 Nov 24
3-(Hydrazinomethyl)thiophene hydrochloride REF: 3D-RQB74121CAS: 1016741-21-1	Min. 95%	A consultar	Mié 13 Nov 24
2-(3-Amino-2-oxo-1,2-dihydropyridin-1-yl)acetic acid hydrochloride REF: 3D-YGC03420CAS: 1423034-20-1	Min. 95%	A consultar	Mié 13 Nov 24
Methyl[2-(morpholin-4-yl)-2-(thiophen-2-yl)ethyl]amine REF: 3D-BNB90369CAS: 951903-69-8	Min. 95%	A consultar	Mié 13 Nov 24
2-[3-({[(tert-Butoxy)carbonyl]amino}methyl)cyclobutyl]acetic acid REF: 3D-MKD62875CAS: 2137628-75-0	Min. 95%	A consultar	Mié 13 Nov 24
Ethyl 5-(4-fluorophenyl)-1,3-oxazole-2-carboxylate REF: 3D-WAA71799CAS: 21717-99-7	Min. 95%	A consultar	Mié 13 Nov 24
2-Methyl-3-(piperidin-4-yl)pyridine REF: 3D-GAC78795CAS: 1256787-95-7	Min. 95%	A consultar	Mié 13 Nov 24
1-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-3-methylpyrrolidine-3-carboxylic acid REF: 3D-TDC24922CAS: 1343249-22-8	Min. 95%	A consultar	Mié 13 Nov 24
trans-2-(Trifluoromethoxy)cinnamic acid REF: 3D-ZQA57992CAS: 399579-92-1	Min. 95%	A consultar	Mié 13 Nov 24
5-(Morpholine-4-sulfonyl)-1,3-benzoxazol-2-amine REF: 3D-BJB11621CAS: 851116-21-7	Min. 95%	A consultar	Mié 13 Nov 24

25mg		365,00 €
250mg		1.455,00 €

1g		966,00 €
100mg		243,00 €

1g		1.039,00 €
100mg		276,00 €

250mg		233,00 €
2500mg		909,00 €

Building Blocks

Subcategorías de "Building Blocks"

Ácidos borónicos y derivados del ácido borónico

Building Blocks quirales

Building Blocks de hidrocarburos

Building Blocks orgánicos

Productos de "Building Blocks"

1-Bromo-1-ethoxycyclopropane

Ref: 3D-VDA63162

5-(2-Chlorophenyl)picolinaldehyde

Ref: 3D-QCA21937

6-Ethylbenzo[E][1,2,4]triazine-3-carboxylic acid

Ref: 3D-WVB29292

N-Boc-4-pentyne-1-amine

Ref: 3D-BGA97850

2H,3H,4H-Benzo[E]thiin-6-ylamine

Ref: 3D-UEC16328

4-{[(4-Chlorophenyl)sulfanyl]methyl}benzohydrazide

Ref: 3D-CQA76932

Ethyl 2-hydroxy-3-methyl-4-oxopentanoate

Ref: 3D-RKB85805

1-(3-Methoxypropyl)-4-methyl-1H-pyrazol-3-amine

Ref: 3D-UDC08035

(2E)-3-[4-(Heptyloxy)-3-methoxyphenyl]prop-2-enoic acid

Ref: 3D-FQC94990

rac-(1R,2S,4S)-2-(Methoxymethyl)-7-azabicyclo[2.2.1]heptane hydrochloride

Ref: 3D-TPD50541

3-(2,5-Dimethylphenoxy)piperidine

Ref: 3D-WMB68105

1-Methyl-2-piperazinecarboxylic acid dihydrochloride

Ref: 3D-WZB55014

5-(Piperidin-4-yl)isoquinoline

Ref: 3D-GAC80740

rac-tert-Butyl (2R,3R)-3-hydroxy-2-(propan-2-yl)pyrrolidine-1-carboxylate

Ref: 3D-HCD37453

4-[4-Methyl-5-(trifluoromethyl)-1H-pyrazol-1-yl]butanoic acid

Ref: 3D-YXC84308

Methyl 3-Chloro-5-(hydroxymethyl)benzoate

Ref: 3D-DGA20358

([5-(4-Methylphenyl)isoxazol-3-yl]methyl)amine hydrochloride

Ref: 3D-YCC58427

1,3-Diethyl 2-(2-phenylacetamido)propanedioate

Ref: 3D-NDA74417

3-Methyl-1-(1-{5H,6H,7H,8H,9H-[1,2,4]triazolo[4,3-a]azepin-3-yl}ethyl)-1H-pyrazol-4-amine hydrochloride

Ref: 3D-GHC96649

2-Methylpentan-2-amine hydrochloride

Ref: 3D-MEA30654

3-(3-Bromophenyl)-2,2-dimethylpropan-1-amine hydrochloride

Ref: 3D-YTB10678

tert-Butyl 4-(2-hydroxyethyl)azepane-1-carboxylate

Ref: 3D-YTA83698

N-(4-Hydroxyphenyl)cyclohexanecarboxamide

Ref: 3D-YWA76346

2-Amino-2-t-butylpropanoic acid HCl

Ref: 3D-NDA80779

8-Acetyl-5-(benzyloxy)-2H-benzo[b][1,4]oxazin-3(4H)-one

Ref: 3D-KRB22932

(2,5-Dichlorothiophen-3-yl)(phenyl)methanone

Ref: 3D-ZDA97187

3-[(2-Methylprop-2-en-1-yl)oxy]aniline

Ref: 3D-HEA26837

4,4-Diethyl-2,6-dioxopiperidine-3,5-dicarbonitrile

Ref: 3D-FDA72113

1-[(4-Bromo-2-fluorophenyl)carbonyl]pyrrolidine

Ref: 3D-HKB68988

2-{[(tert-Butoxy)carbonyl]amino}-2-(4-ethoxyphenyl)acetic acid

Ref: 3D-EGC87792

5-Bromo-2-ethoxyanisole

Ref: 3D-VSB79538

3-[2-(Trifluoromethyl)phenyl]-1H-pyrazole-5-carboxylic acid

Ref: 3D-NRB77076

Ethyl 3-bromopyrazolo[1,5-a]pyrimidine-5-carboxylate

Ref: 3D-UZA30683

tert-Butyl 3-hydrazinylpiperidine-1-carboxylate

Ref: 3D-BZB81521

6-(2,2,2-Trifluoroethoxy)pyrazin-2-amine

Ref: 3D-GHC65474

(4-Methylpiperazin-1-yl)-oxo-acetic acid

Ref: 3D-SDB90436

N'-Hydroxy-1-methyl-1H-imidazole-5-carboximidamide